Soils and Soil Types

What is clay?

• A component of soil made of very tiny grains; sticky and soft when wet but turns hard when dry

• A component of soil made of small pieces of rock; pebbles; usually has a smooth texture

• To hold inside, as soil does with water

• A mixture of sand, silt, clay, rock, and humus (plant and animal remains)

What is gravel?

• A component of soil made of very tiny grains; sticky and soft when wet but turns hard when dry

• A component of soil made of small pieces of rock; pebbles; usually has a smooth texture

• To hold inside, as soil does with water

• A mixture of sand, silt, clay, rock, and humus (plant and animal remains)

What does it mean to retain?

• A component of soil made of very tiny grains; sticky and soft when wet but turns hard when dry

• A component of soil made of small pieces of rock; pebbles; usually has a smooth texture

• To hold inside, as soil does with water

• A mixture of sand, silt, clay, rock, and humus (plant and animal remains)

Tags

NGSS.MS-ESS2-4

What is soil?

• A component of soil made of very tiny grains; sticky and soft when wet but turns hard when dry

• A component of soil made of small pieces of rock; pebbles; usually has a smooth texture

• To hold inside, as soil does with water

• A mixture of sand, silt, clay, rock, and humus (plant and animal remains)

What is topsoil?

• A component of soil made of very tiny grains; sticky and soft when wet but turns hard when dry

• A component of soil made of small pieces of rock; pebbles; usually has a smooth texture

• To hold inside, as soil does with water

• Top layer of soil

_______ is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt.

• loam
• humus
• soil
• dirt

Tags

NGSS.MS-LS2-1

Which type of soil can hold the greatest amount of water?

• sand
• silt
• clay
• loam

Decayed organic material turns into dark colored material called __.

• litter
• clay
• humus
• soil

Tags

NGSS.MS-LS2-3

The top layer of soil is called ________.

• bedrock
• topsoil
• subsoil
• grass

This type of soil is sticky when wet and hard when dry. 

• clay
• silt
• sand
• gravel